Bleach: Medicine Can't Save the Soul Society

Chiba Makoto, nicknamed 'Makoto,' is a specially invited doctor of the Shinigami Women's Association, a master of infertility and gynecology, the lieutenant of the Fourth Division, the man most desired by the Eleventh Division, ranked second in the Seireitei's Top Ten Most Popular Shinigami (first place is vacant), a distinguished guest of the Four Great Noble Clans, and the wielder of the strongest wood-type Zanpakuto - 'Minazuki.'

My medical skills and Kaido are my passion. I am willing to continuously save lost souls suffering from pain, contributing my humble efforts to the prosperity of the entire Soul Society...

Of course, if medicine can no longer save the Soul Society, perhaps drawing my sword is also a good option.

Minazuki - Birth of the Tree Realm!

(PS: Not pure invincibility...)